When a car full of waste and remove garbage to throw away, then moving it back to the point of waste within the zone to continue until all the garbage points.
When the amount of garbage filled the car and took the trash and then move back to the garbage collection within the zone to continue until all the points.
When the amount of garbage truck is already full to take out the garbage, then moves back to the point garbage within zone for the เก็บขยะ on until all the points.